Rotaflow® Hydrated Centrifugal & Vortex
Contaminant Separation Technology

Helping industry remove contaminants from water to parts per billion.

GM Innovations Limited

GM Innovations Limited located in Glasgow have developed Rotaflow® , a range of Hydrated Centrifugal Separators to remove contaminants from water in a wide range of market sectors including Oil & Gas, Wastewater Treatment & Mining.

The Rotaflow Hydrated Centrifugal Contaminant Separator is a ‘new concept’ contaminant separator based on a hydrated centrifugal force process for a range of contaminants including oil, sand/grit and sludge.

GM Innovations Limited has further developed the Rotaflow® Collimator Separator that uses the Vortex Principle.

Initial analysis carried out and verified by independent laboratories shows contaminate reduction to 18.51 ppm (parts per million) residual Brent Crude equivalent oil contaminant in water after processing a 50:50 (500,000 ppm) oil & water mixture and 6 ppm (parts per million) residual sand in water with a fine sand / grit & water process separation.

The applications in the oil and gas sector include the treatment of produced water, contaminant removal from fracking process fluids and the retrieval of oil from water in the case of oil spillages.


GM Innovations Limited were successful in receiving a Scottish Government funded SMART feasibility award to design and build a unit to separate oil and water and has now developed a portfolio of three distinct but powerfully complementary separation devices:


The GM Innovations’ ROTAFLOW® range of separators are protected by the following granted National and International Patents:


Having secured the Intellectual Property, de-risked the project and achieved proof of concept, GM Innovations are now moving to the stage of seeking interested licensed engineering manufacturing partners with experience in the oil & gas markets and technology and believe that this could be an excellent opportunity for a suitable manufacturing partner to maximise on the considerable market potential.

Importantly, the GM Innovations package aligns with the global awareness of the fragility of the environment and the understanding on the importance of water as a commodity.


The GM Innovations Test and Development Facility in Glasgow is focused on the Environment and the Circular Economy.

The Rotaflow® Innovations, water purification development initiatives are an excellent alignment to Scottish Government and Global environmental strategies and an excellent showcase and resource centre for the portfolio of Rotaflow® Hydrated Centrifugal Contaminant Separators.